'Feet' in the Bible

But see to it, when he goes to rest, that you take note of the place where he is sleeping, and go in there, and, uncovering his feet, take your place by him; and he will say what you are to do.

Now when Boaz had taken meat and drink, and his heart was glad, he went to take his rest at the end of the mass of grain; then she came softly and, uncovering his feet, went to rest.

Now in the middle of the night, the man awaking from his sleep in fear, and lifting himself up, saw a woman stretched at his feet.

And she took her rest at his feet till the morning: and she got up before it was light enough for one to see another. And he said, Let it not come to anyone's knowledge that the woman came to the grain-floor.